Asymptotic Error Estimates for L2 Best Rational Approximants to Markov Functions
نویسندگان
چکیده
منابع مشابه
Asymptotic Error Estimates for L2 Best Rational Approximants to Markov Functions
Let f (z)= (t&z) d+(t) be a Markov function, where + is a positive measure with compact support in R. We assume that supp(+)/(&1, 1), and investigate the best rational approximants to f in the Hardy space H 2(V), where V :=[z # C | |z|>1] and H 2(V) is the subset of functions f # H2(V) with f ( )=0. The central topic of the paper is to obtain asymptotic error estimates for these approximants. T...
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ژورنال
عنوان ژورنال: Journal of Approximation Theory
سال: 2001
ISSN: 0021-9045
DOI: 10.1006/jath.2000.3515